Clinical data | |
---|---|
Pronunciation | /vɪˈlæzədoʊn/ vi-LAZ-ə-dohn |
Trade names | Viibryd |
Other names | EMD-68843; SB-659746A |
AHFS/Drugs.com | Monograph |
MedlinePlus | a611020 |
License data |
|
Routes of administration | By mouth |
Drug class | Serotonin modulator [1] |
ATC code | |
Legal status | |
Legal status | |
Pharmacokinetic data | |
Bioavailability | 72% (oral, with food) [5] |
Metabolism | Liver via CYP3A4 [5] |
Elimination half-life | 25 hours [5] |
Excretion | Faecal and renal [5] |
Identifiers | |
| |
CAS Number |
|
PubChem CID | |
IUPHAR/BPS | |
DrugBank |
|
ChemSpider | |
UNII |
|
KEGG | |
ChEBI |
|
ChEMBL |
|
PDB ligand | |
CompTox Dashboard (EPA) | |
Chemical and physical data | |
Formula | C26H27N5O2 |
Molar mass | 441.535 g·mol−1 |
3D model (JSmol) | |
| |
| |
(what is this?) (verify) |
Vilazodone, sold under the brand name Viibryd among others, is a medication used to treat major depressive disorder. [1] It is classified as a serotonin modulator and stimulator [1] and is taken by mouth. [1]
Common side effects include nausea, diarrhea, and trouble sleeping. [1] Serious side effects may include increased suicidal thoughts or actions in those under the age of 25, serotonin syndrome, bleeding, mania, pancreatitis, and SIADH. [1] Vilazodone may cause less emotional blunting than typical SSRIs and SNRIs. [6] A withdrawal syndrome may occur if the dose is rapidly decreased. [1] Use during pregnancy and breastfeeding is not generally recommended. [7] It is in the serotonin modulator class of medications and is believed to work both as an SSRI and activator of the 5-HT1A receptor. [1]
Vilazodone was approved for medical use in the United States in 2011 [1] and in Canada in 2018. [8] In 2019, it was the 334th most commonly prescribed medication in the United States, with more than 900 thousand prescriptions. [9] The drug lost patent protection in June 2022 for adults and in July 2023 for pediatrics. [10] Generic versions have been approved by the U.S. Food and Drug Administration (FDA). [11] [12]
Seven controlled efficacy trials were conducted of vilazodone for treatment of major depressive disorder (MDD). [13] Five of these trials showed no significant influence of vilazodone over placebo on depressive symptoms. [13] In the remaining two trials, small but significant advantages of vilazodone over placebo were found. [13] According to these two eight-week trials in adults, vilazodone has an antidepressant response after one week of treatment. [14] After eight weeks it resulted in a 13% greater response than placebo. [14] Remission rates, however, were not significantly different versus placebo. [14]
According to the US Food and Drug Administration (FDA) staff in 2011, "it is unknown whether vilazodone has any advantages compared to other drugs in the antidepressant class." [15] A 2019 review stated that "present studies do not suggest the superiority of vilazodone compared with other antidepressants." [16]
Development of vilazodone for generalized anxiety disorder (GAD) has been stopped as of 2017. [17] While there is tentative evidence of a small benefit in GAD, there is a high rate of side effects. [18]
In September 2016, the FDA wrote a letter to Forest Labs requiring a new warning to be added to the label related to a link between the drug and acute pancreatitis and sleep paralysis. [19]
The most common adverse effects include nausea, diarrhea, vomiting, and insomnia. [5]
After a one-year, open-label study assessing the safety and tolerability of vilazodone in people with major depressive disorder, the most common adverse effects were diarrhea (35.7%), nausea (31.6%), and headache (20.0%); greater than 90% of these adverse effects were mild or moderate. [20] [14] In randomized controlled trials, meanwhile, these rates were 28%, 23.4% and 13.3%, respectively. [14] In contrast to other SSRIs, initial trials showed that vilazodone did not cause decreased sexual desire/function, which often cause people to abandon their use. [21] [ unreliable medical source? ] Additionally, vilazodone may cause less emotional blunting than typical SSRIs and SNRIs. [6]
Antidepressant exposure (including vilazodone) is associated with shorter average duration of pregnancy (by three days), increased risk of preterm delivery (by 55%), lower birth weight (by 75 g), and lower Apgar scores (by <0.4 points). [22] [23] It is uncertain whether there is an increased rate of septal heart defects among children whose mothers were prescribed an SSRI in early pregnancy. [24] [25]
Vilazodone acts as a serotonin reuptake inhibitor (IC50 = 2.1 nM; Ki = 0.1 nM) and 5-HT1A receptor partial agonist (IC50 = 0.2 nM; IA = ~60–70%). [14] [26] It has negligible affinity for other serotonin receptors such as 5-HT1D, 5-HT2A, and 5-HT2C, [26] [27] as well as the norepinephrine and dopamine transporters (Ki = 56 nM for NET and 37 nM for DAT). [5] A small clinical study found occupancy of the 5-HT1A receptor with vilazodone, whereas occupancy of the SERT by vilazodone in humans does not seem to have been studied. [28] [29] [30]
Vilazodone is best absorbed with food and has a bioavailability of 72% under fed conditions. The Cmax increased between 147 and 160% and the AUC increased between 64 and 85% of vilazodone when it was administered with either a fatty or light meal. [31]
It was developed by Merck KGaA and licensed by Clinical Data, a biotech company purchased by Forest Laboratories in 2011. [32]
Antidepressants are a class of medications used to treat major depressive disorder, anxiety disorders, chronic pain, and addiction.
An anxiolytic is a medication or other intervention that reduces anxiety. This effect is in contrast to anxiogenic agents which increase anxiety. Anxiolytic medications are used for the treatment of anxiety disorders and their related psychological and physical symptoms.
Sertraline, sold under the brand name Zoloft among others, is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. The effectiveness of sertraline for depression is similar to that of other antidepressants, and the differences are mostly confined to side effects. Sertraline is better tolerated than the older tricyclic antidepressants. Sertraline is effective for panic disorder, social anxiety disorder, generalized anxiety disorder (GAD), and obsessive–compulsive disorder (OCD). Although approved for post-traumatic stress disorder (PTSD), sertraline leads to only modest improvement in this condition. Sertraline also alleviates the symptoms of premenstrual dysphoric disorder (PMDD) and can be used in sub-therapeutic doses or intermittently for its treatment.
Venlafaxine, sold under the brand name Effexor among others, is an antidepressant medication of the serotonin–norepinephrine reuptake inhibitor (SNRI) class. It is used to treat major depressive disorder, generalized anxiety disorder, panic disorder, and social anxiety disorder. Studies have shown that venlafaxine improves post-traumatic stress disorder (PTSD). It may also be used for chronic neuropathic pain. It is taken orally. It is also available as the salt venlafaxine besylate in an extended-release formulation.
Duloxetine, sold under the brand name Cymbalta among others, is a medication used to treat major depressive disorder, generalized anxiety disorder, obsessive-compulsive disorder, fibromyalgia, neuropathic pain and central sensitization. It is taken by mouth.
Serotonin–norepinephrine reuptake inhibitors (SNRIs) are a class of antidepressant medications used to treat major depressive disorder (MDD), anxiety disorders, social phobia, chronic neuropathic pain, fibromyalgia syndrome (FMS), and menopausal symptoms. Off-label uses include treatments for attention-deficit hyperactivity disorder (ADHD), and obsessive–compulsive disorder (OCD). SNRIs are monoamine reuptake inhibitors; specifically, they inhibit the reuptake of serotonin and norepinephrine. These neurotransmitters are thought to play an important role in mood regulation. SNRIs can be contrasted with the selective serotonin reuptake inhibitors (SSRIs) and norepinephrine reuptake inhibitors (NRIs), which act upon single neurotransmitters.
Azapirones are a class of drugs used as anxiolytics, antidepressants, and antipsychotics. They are commonly used as add-ons to other antidepressants, such as selective serotonin reuptake inhibitors (SSRIs).
Pindolol, sold under the brand name Visken among others, is a nonselective beta blocker which is used in the treatment of hypertension. It is also an antagonist of the serotonin 5-HT1A receptor, preferentially blocking inhibitory 5-HT1A autoreceptors, and has been researched as an add-on therapy to various antidepressants, such as clomipramine and the selective serotonin reuptake inhibitors (SSRIs), in the treatment of depression and obsessive-compulsive disorder.
Trazodone, sold under many brand names, is an antidepressant medication, used to treat major depressive disorder, anxiety disorders, and insomnia. It is a phenylpiperazine compound of the serotonin antagonist and reuptake inhibitor (SARI) class. The medication is taken orally.
Milnacipran is a serotonin–norepinephrine reuptake inhibitor (SNRI) used in the clinical treatment of fibromyalgia. It is not approved for the clinical treatment of major depressive disorder in the US, but it is in other countries.
Olanzapine/fluoxetine is a fixed-dose combination medication containing olanzapine (Zyprexa), an atypical antipsychotic, and fluoxetine (Prozac), a selective serotonin reuptake inhibitor (SSRI). Olanzapine/fluoxetine is primarily used to treat the depressive episodes of bipolar I disorder as well as treatment-resistant depression.
Fluoxetine, sold under the brand name Prozac, among others, is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It is used for the treatment of major depressive disorder, obsessive–compulsive disorder (OCD), anxiety, bulimia nervosa, panic disorder, and premenstrual dysphoric disorder. It is also approved for treatment of major depressive disorder in adolescents and children 8 years of age and over. It has also been used to treat premature ejaculation. Fluoxetine is taken by mouth.
Gepirone, sold under the brand name Exxua, is a medication used for the treatment of major depressive disorder. It is taken orally.
A serotonin reuptake inhibitor (SRI) is a type of drug which acts as a reuptake inhibitor of the neurotransmitter serotonin by blocking the action of the serotonin transporter (SERT). This in turn leads to increased extracellular concentrations of serotonin and, therefore, an increase in serotonergic neurotransmission. It is a type of monoamine reuptake inhibitor (MRI); other types of MRIs include dopamine reuptake inhibitors and norepinephrine reuptake inhibitors.
Serotonin antagonist and reuptake inhibitors (SARIs) are a class of drugs used mainly as antidepressants, but also as anxiolytics and hypnotics. They act by antagonizing serotonin receptors such as 5-HT2A and inhibiting the reuptake of serotonin, norepinephrine, and/or dopamine. Additionally, most also antagonize α1-adrenergic receptors. The majority of the currently marketed SARIs belong to the phenylpiperazine class of compounds.
Vortioxetine, sold under the brand name Trintellix and Brintellix among others, is an antidepressant of the serotonin modulator and stimulator (SMS) class. Its effectiveness is viewed as similar to that of other antidepressants. It is taken orally.
Selective serotonin reuptake inhibitors (SSRIs) are a class of drugs that are typically used as antidepressants in the treatment of major depressive disorder, anxiety disorders, and other psychological conditions.
A serotonin modulator and stimulator (SMS), sometimes referred to more simply as a serotonin modulator, is a type of drug with a multimodal action specific to the serotonin neurotransmitter system. To be precise, SMSs simultaneously modulate one or more serotonin receptors and inhibit the reuptake of serotonin. The term was created to describe the mechanism of action of the serotonergic antidepressant vortioxetine, which acts as a serotonin reuptake inhibitor (SRI), agonist of the 5-HT1A receptor, and antagonist of the 5-HT3 and 5-HT7 receptors. However, it can also technically be applied to vilazodone, which is an antidepressant as well and acts as an SRI and 5-HT1A receptor partial agonist.